I just found the forum so my post is behind on this thread, This is one of my many builds (sub-mini tube preamp and portable triode/pentode headphone amp). These days I mostly build tube SET amps.
A work mate is a sound guy for a number of bands and gigs in Melbourne. He uses the sub-mini preamp on the lead singers mic. He uses my upgrade parts and enhancements - and likes the sound.
Take an optic nerve at my blog http://www.retro-thermionic.blogspot.com/
Or try the Mongrel Dog blog: http://mongreldogaudio.blogspot.com/
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